Resolving dependencies... [1 of 1] Compiling Main ( /tmp/cabal-tmp-10235/sat-1.0/dist/setup/setup.hs, /tmp/cabal-tmp-10235/sat-1.0/dist/setup/Main.o ) Linking /tmp/cabal-tmp-10235/sat-1.0/dist/setup/setup ... Configuring sat-1.0... Warning: No 'build-type' specified. If you do not need a custom Setup.hs or ./configure script then use 'build-type: Simple'. Building sat-1.0... Preprocessing executable 'SATSolve' for sat-1.0... SATSolver.hs:26:8: Could not find module ‘System.Random’ Use -v to see a list of the files searched for. Failed to install sat-1.0 cabal: Error: some packages failed to install: sat-1.0 failed during the building phase. The exception was: ExitFailure 1